I had dust on my Nikon D600 after less than 1000 shots and before I ever even changed the lens. Something is up with Nikon and dust. Either a shutter design or something else. I even had 2 hot pixels and ended up returning. I'll probably end up re-buying but i'm worried about these issues. Even the reviews are pointing them out:http://learningcameras.com/reviews/4-dslrs/75-nikon-d600-full-review

i tried the '' clean sensor of the menu'' and i had more black spots ! i contacted nikon and they confirmed that the sensor needs to be cleaned, so i took the camera today to the service centre kingston ,london .the service was just great and they have done it while i was waiting .
the whole process done within 4o min.
thank ou msmoto for your reply .

You have a lovely camera that is almost brand new! I sold mine to get a D800 and whilst I love the D800, I miss the D700 that was by far the best (digital) camera I ever owned. I wish I could have kept it but.........

Shoot an exposure of a plain white sheet of paper, camera focus at infinity, paper at about two feet. In post processing, increase contrast to full and then post image. This should show the problem more clearly than a 10 second exposure.

Now that we are in the correct thread...just a little note. Unless I am in an extremely dirty venue, I do not clean lenses. Some have never been cleaned in several years except to possibly blow dust off. And the rear element is never touched unless some unfortunate event occurs and a piece of dirt or smudge gets on the glass.

The pro Nikon bodies do seem to have a tendency to accumulate oil spots. After about 10,000 clicks I cleaned my D4 sensor which had over 70 oil spots, by count, and I have not had another in the past 7,000 clicks.

And, Sary, welcome to NRF. Maybe you could post a photo showing the spot..... or what a while and see if more accumulate.

sary said:
hi guys i've just noticed a mark (same size and location) in some of my pictures taken with my d800 , i've tried differents lenses but still same thing .i do clean my lenses before and after use .has someone experienced same issue please ? is something to do with the sensor .it happens on 3/4 out of 20 pictures !
thank you

@golf007sd, there is also a "Nikon" tab on that same dialog that calls the same value "shutter count". The reason I like reveal is that it's a tiny standalone program that displays all of the EXIF data. I grew up on unix so I guess I have a tool mentality. Most apps are like Swiss army knives with a small chainsaw attached. Yes, you can use that Phillips head screwdriver on the knife in a pinch, but I like a real (standalone) screwdriver for most tasks. Really just boils down to personal preference I guess :-}

Try loading an image in your computer and look at Exif data. If the "Image number" is available it should show up there. If you cannot get the Exif data in your computer, load to Flickr. It should be available there.